The current standard query language SQL requires users to know how data is
normalized and stored in a database schema to compose queries. One of the
major challenges in generating these queries is the identification of joins to
connect attributes located in different relations. Constructing these joins in
SQL or through a graphical query interface is tedious, error-prone, and not
intuitive to casual users. Any new query language should maintain the expressiveness
of SQL without requiring schema knowledge or an additional
model. A new Schema-Free query system is developed to support...